The Precision Upright is the only vacuum that combines Microseal™ Fresh Air Technology! This system captures the ultra-fine particles that pollute the air, assuring you of thorough cleaning by providing maximum dust pick-up for all types of floors, stairs and upholstery. The optimum performance sensor system automatically monitors the vacuum's cleaning performance to ensure peak efficiency. Convenient integrated accessories are thoughtfully stored for easy access. The cord automatically retracts to help make storage fast and easy.